Cross-Browser Compatibility is one of the important  parts of the design and development process that is necessary but really an head ache. Testing your website on different combination of browsers and operating system is time consuming process.
But today there are a lot of good options for testing cross-browser compatibility of your websites , there are hundreds of competitors out there. I have compiled a list of 10 which offer truly excellent services.

1.Adobe Browser Lab:

Adobe Browser Lab is a free resource that allows you to see how your site looks in a wide variety of browsers in Windows XP or Mac OS X (you will need an Adobe account). Once you’ve chosen a browser and an operating system you can enter the URL to see how it looks. You can view one at a time or side-by-side from two different browsers.

2.Browserling:


Browserling lets you do cross-browser testing without leaving your browser. Plus, the browsers run live, so you can type and click on stuff inside the visualized browsers!

3.Browsershots:


BrowserShots is a popular and free resource for getting screenshots from various browsers and operating systems. Enter a URL and wait a few minutes  and your screenshots will load. Priority processing is also available that will cut out the waiting time and allow you to get as many screenshots as you want of any site. The price is $29.95 per month.

4.Browsera:


Browsera is a bit different from many of the other resources listed here because it runs reports and sends you the details. It detects differences in a site’s rending in browsers to make your testing a bit easier. Browsera can also test private pages protected by a login. A limited free plan is available and paid plans start at $39 for 14 days.

5.BrowserCam:


BrowserCam allows you to test a site live in any browser and operating system. It also includes features for testing on mobile devices, and testing emails. There are a number of different plans to choose from based on your needs and the length of subscription that you want. A 24-hour free trial is available that will allow you up to 200 screen captures.

6.CrossBrowserTesting:


Cross Browser Testing is a premium service  that allows you to pick a browser and an operating system and test a site. This allows you to test a live website rather than just producing a screenshot, and automated screenshots are another feature. The Basic Plan offers 150 minutes of testing for $19.95 per month.

7.IE NetRenderer:


IE NetRenderer is a convenient, free resource for testing in IE5.5 – IE8. Simply choose the version of IE that you want and enter a URL. You’ll be able to see the full length of the page, but you can’t interact with the page in the browser.

8.IETester:


IETester from DebugBar is a free web browser (Windows) that allows users to test websites in IE8, IE7, IE6, and IE5.5. IETester is a free (both for personal and professional usage) Web Browser that allows you to have the rendering and javascript engines of IE10 preview, IE9, IE8, IE7 IE 6 and IE5.5 on Windows 7, Vista and XP, as well as the installed IE in the same process.

9.LUNASCAPE:


it is the world’s first and only triple engine browser. It has been downloaded over 20 million times and it’s available globally in 12 languages.  Lunascape6 achieves the utmost extensibility without compromising one of the fastest speeds in the market. You can browse lightning fast while enjoying ample add-ons. They’ve also made special effort in ensuring fast launch even with many add-ons. Lunascape is now compatible with the expanding array of Firefox add-ons in addition to the already supported Internet Explorer add-ons and Lunascape plug-ins, achieving the greatest degree of extensibility and flexibility among Web browsers.

10.Sause labs:


Design, debug, and test faster. Scout gives you access to cloud-hosted browsers in less than 20 seconds. You control them with your keyboard and mouse — just like you would at your computer. You want to share what you found with your team, and we make that easy by automatically giving you videos and screenshots of your session.